US4640381A - Wall-mounted resin speaker cabinet - Google Patents

Wall-mounted resin speaker cabinet Download PDF

Info

Publication number
US4640381A
US4640381A US06/628,084 US62808484A US4640381A US 4640381 A US4640381 A US 4640381A US 62808484 A US62808484 A US 62808484A US 4640381 A US4640381 A US 4640381A
Authority
US
United States
Prior art keywords
cabinet
baffle board
woofer
speaker
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/628,084
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English (en)
Inventor
Yukio Tsuchiya
Yutaka Matsukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Assigned to PIONEER ELECTRONIC CORPORATION reassignment PIONEER ELECTRONIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MATSUKAWA, YUTAKA, TSUCHIYA, YUKIO
Application granted granted Critical
Publication of US4640381A publication Critical patent/US4640381A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein

Definitions

  • the present invention pertains to a speaker cabinet. More particularly, the invention pertains to a speaker cabinet made of a plastic resin material and which is adapted for wall mounting.
  • the speaker is usually the largest of the components of an audio system, it is desirable to design the cabinet of the speaker to adapt well with the interior design of the room where the audio system is to be used and to make maximum use of the available space.
  • so-called flat speakers have been developed in which the depth of the cabinet is substantially reduced and the speaker can readily be mounted on a wall or the like.
  • Such flat-type speakers have attained frequency response and sound capacity characteristics comparable with those of larger conventional speakers.
  • a wall-mounted speaker cabinet which is made of a resin material and which has side walls which slope inwardly toward the back of the cabinet.
  • a signal terminal plate is provided on at least one of these side walls.
  • An elongated rib is integrally formed in the interior of the cabinet, with the forward edge of the rib being abutted against a baffle board.
  • the back of the cabinet is provided with an opening corresponding to a yoke of a speaker, and a heat radiating member disposed in this opening.
  • FIG. 1 is an exploded perspective view of a speaker cabinet constructed in accordance with the present invention
  • FIGS. 2 and 3 are, respectively, a plan view and a front view of the speaker cabinet of FIG. 1, shown partially in cross section;
  • FIGS. 4 and 5 are, respectively, a cross-sectional and a rear view of the speaker cabinet of FIG. 1;
  • FIG. 6 is an enlarged fragmentary view showing the construction of a mounting fixture of the speaker cabinet of FIG. 1;
  • FIG. 7 is a cross-sectional view taken along a line VI--VI in FIG. 6;
  • FIGS. 8A and 8B are, respectively, a plan view and a front view of a grille board used in the speaker cabinet of FIG. 1;
  • FIGS. 9A, 9B and 9C are cross-sectional views taken along lines IXa--IXa, IXb--IXb, and IXc--IXc in FIG. 8A;
  • FIGS. 10A, 10B and 10C are, respectively, a plan view, a front view and a side view of a front grille used with the speaker cabinet of FIG. 1;
  • FIG. 11 is a frequency response diagram showing the relationship between the frequency of an applied sound signal and the oscillation level of a baffle board used in the speaker of the invention.
  • FIG. 12 is a fragmentary-sectional view showing a speaker cabinet incorporating a modified form of a sound reflecting member.
  • a speaker cabinet body 1 is open over its entire front surface.
  • the speaker cabinet body 1 is formed as an integral unit by molding with a thermoplastic resin such as ABS or the like.
  • the speaker cabinet body 1 is provided in its interior with a plurality of reinforcing ribs 1a.
  • the speaker cabinet body 1 has side walls 1b, which incline inwardly towards the rear of the cabinet. Due to the provision of these inclined side walls 1b, as will be described below in more detail, resonances within the speaker cabinet body 1 and a baffle board employed therein are avoided.
  • Another advantage of the sloped side walls 1b is that the cabinet body 1 is easier to mold during an injection molding process.
  • An opening 1c is foremd in one of the inclined side walls 1b adjacent one of the corners of the body 1, and a signal terminal plate 2 is secured by screws (not shown) to the body 1 with a sealing member 2a interposed around the opening 1c.
  • a longitudinally extending elongated rib 1d is formed in the interior of the cabinet body 1.
  • the elongated rib 1d serves to reinforce the cabinet body 1 as a whole, thereby permitting it to be molded as a relatively thin-walled member. This further minimizes the formation of sink marks and prevents warping of the cabinet body 1. Because the cabinet body 1 can be made thin walled, the molding speed may be increased, and a lesser amount of resin used, thereby significantly reducing the overall cost of the cabinet.
  • a hollow 1e is formed at the rear of the elongated rib 1d to further reduce the weight of the cabinet body 1.
  • the length of the rib 1d should be less than the distance between the side walls 1b of the body 1 adjacent its ends. The space between the ends of the elongated rib 1d and the adjacent side walls prevents standing waves from arising inside the cabinet body 1, and thereby suppresses resonances within the cabinet body 1.
  • the cabinet body 1 is formed along the edges of its front side with a stepped portion into which a baffle board 3 is fitted.
  • a sealing member 3a (FIG. 1) seals the periphery of the baffle board 3 to the cabinet body 1.
  • the baffle board 3 is secured by set screws to the cabinet body 1.
  • the baffle board 3 may be a press-formed particle board or the like, having a desired sound-absorbing characteristic.
  • the forward edge of the elongated rib 1d abuts the rear surface of the baffle board 3, with a sealing member 3b (FIG. 1) interposed therebetween.
  • the elongated rib 1d is connected to the baffle board 3 by set screws (not shown), thereby rendering the cabinet as a whole rigid.
  • Glass wool or the like may be inserted as a sound-absorbing member in the space defined between the cabinet body 1 and the baffle board 3.
  • FIG. 11 is a frequency characteristic diagram showing the oscillation frequency and oscillation level of the baffle board 3 in the case where the elongated rib 1d is provided (solid line) and where the elongated rib 1d is omitted (dashed line). As is apparent from this diagram, the oscillation level of the baffle board 3 is substantially reduced by the provision of the elongated rib 1d.
  • a single elongated rib 1d is provided in the embodiment illustrated in the accompanying drawings, a plurality of such ribs may be provided if desired. Specifically, for larger size speakers, it may be desirable to provide plural ones of such ribs. Further, if desired, the elongated rib or ribs 1d may be slanted relative to a plane perpendicular to the front face of the cabinet body 1, but should be maintained parallel to the sides of the cabinet body 1.
  • a woofer 4 and a tweeter 5 are mounted on the baffle board 3 closely adjacent one another at one side thereof.
  • the rear end of the tweeter 5 is inserted into an opening 3c formed in the baffle board 3, and the tweeter 5 is secured with set screws 5a to the baffle board 3.
  • the rear end of the woofer 4 is inserted in an opening 3d formed in the baffle board 3, and the woofer 4 secured with set screws 4a to supports lg projecting from the interior of the cabinet body 1.
  • a sealing member 4c may be provided between the rear of the flange of the woofer 4 and the baffle board 3.
  • the area in the baffle board 3 where the woofer 4 is received is preferably recessed to a depth substantially equal to the thickness of the flange 4b of the woofer 4. This is done to reduce the thickness of the cabinet as a whole.
  • the provision of the recess 3e in the baffle board 3 facilitates the correct positioning of the woofer 4 on the baffle board 3.
  • a recess may also be formed to accommodate the tweeter 5.
  • the baffle board 3 is rigidly attached to the cabinet body 1 to reduce the amount of oscillation of the baffle board 3. Attaching the baffle board 3 to the cabinet body 1 with the same set screws 4a as are used to secure the woofer 4 to the baffle board 3 reduces the total number of parts in the speaker and reduces the number of assembly steps.
  • a printed circuit board assembly 6 is fixedly mounted to the rear of the baffle board 3 in an area near the woofer 4.
  • the printed circuit board assembly 6 contains a frequency-dividing network for dividing the input signal between the woofer 4 and the tweeter 5.
  • the grille board 7 is rectangular in shape, and includes openings 7a formed in areas corresponding to the diaphragms of the woofer 4 and tweeter 5.
  • the openings 7a are separated by a partitioning segment at a position corresponding to the space between the woofer 4 and tweeter 5.
  • Set screws 7c secure the grille board 7 to the baffle board 3, specifically, the set screws 7c are screwed into projections 1h integrally formed in the cabinet body (FIG. 1). This prevents the grille board 7 from being warped or otherwise distorted due to variations in temperature, humidity and other such factors.
  • the grille board 7 is provided at its rear with abutment bosses 7d at the position of each of the screws 7c, projecting rearwardly towards the baffle board 3.
  • the grille board 7 is prevented from vibrating.
  • a groove 7e is formed around the periphery of the front surface of the grille board 7.
  • the frame 9a of a sound-porous front grille 9 Into the groove 7a is received the frame 9a of a sound-porous front grille 9.
  • the frame 9a of the front grille 9 has engaging protrusions 9b, for instance, six in number. The tip of each engaging protrusion 9b is bent outwardly.
  • Corresponding recesses 7f are formed along the groove 7e.
  • a rigid plate 10, made of glass or the like, is mounted to further reduce the amount of oscillation of the baffle board 3.
  • the plate 10 is secured with, for example, four screws 10a to the baffle board 3.
  • the screws 10a may be of a type which can be turned with a coin or the like for convenience.
  • a spacer 10b, preferably made of a resin material and which serves as a washer, is interposed between each of these screws 10a and plate 10.
  • a vibration-absorbing plate 12 which may be made of a vibration-absorbing paper or the like, and a sheet 13 of a colored paper.
  • a foamed styrole material can be employed.
  • the plate 10 may be made of cork, in which case the colored paper can, of course, be omitted.
  • the use of a glass plate is, however, preferred in that a photograph or picture may be arranged between the colored paper 13 and the glass plate 10 in that case.
  • the plate 10 is made of cork, it is still possible to attach a photograph or the like to the plate 10 by the use of thumbtacks.
  • a circular opening is formed in the rear of the cabinet body 1 at a position corresponding to the yoke 4a of the woofer 4.
  • a substantially dish-shaped heat radiating member 14 which is formed of a material having a high thermal conductivity and which is resistant to distortion caused by heating.
  • the purpose of the member 14 is to dissipate heat generated in the yoke 4d of the woofer 4 so that deformation of the cabinet body 1 due to heating is avoided.
  • FIG. 12 shows a modified form of the heat radiating member.
  • the radiating member 15 has a peripheral portion encircling the yoke 4d of the woofer 4, having a nearly bowl-type shape as a whole. By encircling the yoke 4d of the woofer 4, an enhanced heat dissipating effect is obtained.
  • the speaker cabinet body is provided at its rear with four mounting members 16, arranged at positions such that the center of the rectangle defined by the four mounting members 16 is at the center of gravity of the complete speaker, including the cabinet body 1, baffle board 3, woofer 4, tweeter 5, rigid plate 10, and all other members.
  • the mounting members 16 are provided for mounting the speaker to a wall or the like.
  • Each of the mounting members 16 is formed by a concave 1h (FIG. 7) formed integrally with the rear of the cabinet body 1, and a metal fixture 16, which may be made of steel and which is secured to the cabinet body 1 with screws 16a.
  • the concaves 1h are formed by depressing the back of the cabinet body 1 after injection during the molding process.
  • Each metal fixture 16 has an opening 16c into which the head of the nail or screw secured to the wall where the cabinet is to be mounted is received.
  • each opening 16c has branches 16d, which are provided to restrict the movement of the speaker in the direction of gravity.
  • the branches 16d extend substantially perpendicular to one another and have a width less than the outer diameter of the head of the nail or screw secured to the wall.
  • the speaker cabinet according to the invention includes side walls which incline inwardly toward the rear of the speaker cabinet. Because the distances between opposite side walls of the speaker cabinet body vary in a direction perpendicular to the plane of the baffle board, standing wave patterns are prevented from occurring. This eliminates resonances from the speaker cabinet.
  • the signal terminal plate is formed on one of the inclined side walls, it is not visible from the front of the cabinet. This improves the appearance of the cabinet as a whole. Also, with such mounting of the signal terminal plate, the signal cable can readily be connected to or disconnected from the terminals on the signal terminal plate while the speaker cabinet is mounted to the wall.
  • the inventive speaker cabinet is advantageous in that the resin molding operation is quite simple, the resin being able to flow smoothly during molding with substantially no production of sink marks. Also, inclining the side walls toward the back of the cabinet makes the cabinet appear very thin, thereby improving the overall appearance of the cabinet.

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
US06/628,084 1983-07-04 1984-07-05 Wall-mounted resin speaker cabinet Expired - Fee Related US4640381A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58121255A JPS6012891A (ja) 1983-07-04 1983-07-04 壁掛式樹脂製スピ−カキヤビネツト
JP58-121255 1983-07-04

Publications (1)

Publication Number Publication Date
US4640381A true US4640381A (en) 1987-02-03

Family

ID=14806727

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/628,084 Expired - Fee Related US4640381A (en) 1983-07-04 1984-07-05 Wall-mounted resin speaker cabinet

Country Status (4)

Country Link
US (1) US4640381A (ja)
JP (1) JPS6012891A (ja)
DE (1) DE3424644A1 (ja)
GB (1) GB2145606B (ja)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082083A (en) * 1990-10-02 1992-01-21 Culver Electronic Sales, Inc. Structure wall mounted speaker assembly
US5402502A (en) * 1992-08-20 1995-03-28 Canon Audio Limited Sound output system
US5526064A (en) * 1994-03-29 1996-06-11 Sony Corporation Cabinet molded in resin
US6056083A (en) * 1997-02-24 2000-05-02 Daniell; Stephen S. Loudspeakers in architectural form
US6215885B1 (en) 1997-06-26 2001-04-10 George R. Geiger Audio speaker
US6360842B1 (en) 2000-02-29 2002-03-26 Multi Service Corporation In-wall speaker mounting apparatus
US6550570B2 (en) 2001-01-16 2003-04-22 Multi Service Corporation Speaker enclosure and mounting method for isolating and insulating faceplate and speakers from a surrounding mounting surface
US6598700B1 (en) 1999-04-15 2003-07-29 Ernest C. Schroeder Compression molded cellulose (CMC) loudspeaker cabinets and method for making same
US6675932B2 (en) * 2001-07-02 2004-01-13 Harman International Industries, Inc. Speaker housing configured to minimize standing waves and resonate above the frequency range of transducers
US20060280328A1 (en) * 2005-06-09 2006-12-14 Kabushiki Kaisha Toshiba Speaker device and image display apparatus
US20070039777A1 (en) * 2005-08-16 2007-02-22 Whitaker Scott R Speaker enclosure for a wall mounted speaker system
US20070158134A1 (en) * 2006-01-11 2007-07-12 Fryette Steven M Speaker cabinet acoustics control mechanism
US20070284183A1 (en) * 2006-06-08 2007-12-13 Whitaker Scott R Speaker enclosure for a ceiling or wall mounted speaker method and apparatus
US20110088965A1 (en) * 2001-08-06 2011-04-21 La Rouge International Co., Ltd. Structure for the compositely formed sound box
US20140353075A1 (en) * 2013-05-31 2014-12-04 David A. Wilson Speaker enclosure frame
USD832238S1 (en) * 2017-06-21 2018-10-30 RB Distribution, Inc. Speaker cover
SE543949C2 (en) * 2020-10-02 2021-10-05 Ikea Supply Ag A panel-shaped electronic device with intersecting cable channels on the back-side
US11272275B1 (en) 2020-03-19 2022-03-08 Wisdom Audio Corp. Magnetic recoil fastener assembly for in-wall speaker installations
US11956589B1 (en) 2021-07-13 2024-04-09 Wisdom Audio Corp. PMD speaker mounting assembly and thermal control system for multiple drivers

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202711A (en) * 1987-03-07 1988-09-28 Martin Audio Ltd Loudspeakers
DE3821166A1 (de) * 1988-06-23 1989-12-28 Electronic Werke Deutschland Passive lautsprecherbox fuer einen fernsehempfaenger
GB2265519A (en) * 1992-03-19 1993-09-29 Jonathan Neil Smith Flat monopole loudspeaker
GB2269959B (en) * 1992-08-19 1996-03-06 Canon Audio Ltd Sound output
FR2738983B1 (fr) * 1995-09-20 1997-10-17 Aubriot Cedric Enceinte acoustique du type comportant une structure rigide supportant au moins un haut-parleur fixe sur une paroi plane
CN104683908A (zh) * 2015-03-03 2015-06-03 深圳市智科通讯有限公司 一种移动终端的音响结构

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US3982607A (en) * 1975-01-28 1976-09-28 Evans Arnold D Loudspeaker cabinet having an integrally constructed horn
US4029170A (en) * 1974-09-06 1977-06-14 B & P Enterprises, Inc. Radial sound port speaker
US4032725A (en) * 1976-09-07 1977-06-28 Motorola, Inc. Speaker mounting
US4083426A (en) * 1974-10-17 1978-04-11 Peugh H Mark Loud speaker apparatus
US4161995A (en) * 1976-08-20 1979-07-24 Blaupunkt-Werke Gmbh Loudspeaker housing forming a closed, damped system, particularly for automotive installation
US4177872A (en) * 1977-03-11 1979-12-11 Sony Corporation Speaker system
EP0024461A1 (de) * 1979-03-26 1981-03-11 Schweizer, René - verstorben - gesetzlich vertreten durch Scheidegger, Franz Lautsprecher-Anlage für Decken- und Wandmontage und Systemgehäuse für elektrische Apparate für Decken- und Wandmontage
US4296280A (en) * 1980-03-17 1981-10-20 Richie Ronald A Wall mounted speaker system
US4424881A (en) * 1982-02-17 1984-01-10 Emhart Industries, Inc. Speaker assembly
US4454927A (en) * 1981-12-21 1984-06-19 Atlas Sound Division Of American Trading And Production Corp. Reentrant cone driven loudspeaker

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US3927261A (en) * 1972-11-29 1975-12-16 Jon G Dahlquist Multiple driver dynamic loud speaker
JPS506829U (ja) * 1973-05-15 1975-01-24
FR2239185A7 (ja) * 1973-07-26 1975-02-21 Plabett Di Granata Francesco
US3882962A (en) * 1973-10-03 1975-05-13 Warren Ripple Loudspeaker equipment
JPS5289910A (en) * 1976-01-23 1977-07-28 Kazumi Masaki Pyramid type speaker box
DE2725346C3 (de) * 1977-06-04 1981-05-14 Josef Wilhelm 8725 Arnstein Manger Lautsprecher
DE2913256A1 (de) * 1979-04-03 1980-10-23 Dressler Beteiligungs Gmbh Lautsprechergehaeuse

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953675A (en) * 1972-05-08 1976-04-27 Babbco, Ltd. Audio speaker system
US4029170A (en) * 1974-09-06 1977-06-14 B & P Enterprises, Inc. Radial sound port speaker
US4083426A (en) * 1974-10-17 1978-04-11 Peugh H Mark Loud speaker apparatus
US3982607A (en) * 1975-01-28 1976-09-28 Evans Arnold D Loudspeaker cabinet having an integrally constructed horn
US4161995A (en) * 1976-08-20 1979-07-24 Blaupunkt-Werke Gmbh Loudspeaker housing forming a closed, damped system, particularly for automotive installation
US4032725A (en) * 1976-09-07 1977-06-28 Motorola, Inc. Speaker mounting
US4177872A (en) * 1977-03-11 1979-12-11 Sony Corporation Speaker system
EP0024461A1 (de) * 1979-03-26 1981-03-11 Schweizer, René - verstorben - gesetzlich vertreten durch Scheidegger, Franz Lautsprecher-Anlage für Decken- und Wandmontage und Systemgehäuse für elektrische Apparate für Decken- und Wandmontage
US4296280A (en) * 1980-03-17 1981-10-20 Richie Ronald A Wall mounted speaker system
US4454927A (en) * 1981-12-21 1984-06-19 Atlas Sound Division Of American Trading And Production Corp. Reentrant cone driven loudspeaker
US4424881A (en) * 1982-02-17 1984-01-10 Emhart Industries, Inc. Speaker assembly

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082083A (en) * 1990-10-02 1992-01-21 Culver Electronic Sales, Inc. Structure wall mounted speaker assembly
US5402502A (en) * 1992-08-20 1995-03-28 Canon Audio Limited Sound output system
US5526064A (en) * 1994-03-29 1996-06-11 Sony Corporation Cabinet molded in resin
US6056083A (en) * 1997-02-24 2000-05-02 Daniell; Stephen S. Loudspeakers in architectural form
US6215885B1 (en) 1997-06-26 2001-04-10 George R. Geiger Audio speaker
US6598700B1 (en) 1999-04-15 2003-07-29 Ernest C. Schroeder Compression molded cellulose (CMC) loudspeaker cabinets and method for making same
US6415886B1 (en) * 2000-02-29 2002-07-09 Multi Service Corporation In-wall speaker mounting apparatus
US6360842B1 (en) 2000-02-29 2002-03-26 Multi Service Corporation In-wall speaker mounting apparatus
US6550570B2 (en) 2001-01-16 2003-04-22 Multi Service Corporation Speaker enclosure and mounting method for isolating and insulating faceplate and speakers from a surrounding mounting surface
US6675932B2 (en) * 2001-07-02 2004-01-13 Harman International Industries, Inc. Speaker housing configured to minimize standing waves and resonate above the frequency range of transducers
US8356689B2 (en) * 2001-08-06 2013-01-22 Harman International Industries, Inc. Structure for the compositely formed sound box
US20110088965A1 (en) * 2001-08-06 2011-04-21 La Rouge International Co., Ltd. Structure for the compositely formed sound box
US20060280328A1 (en) * 2005-06-09 2006-12-14 Kabushiki Kaisha Toshiba Speaker device and image display apparatus
US7353907B2 (en) 2005-08-16 2008-04-08 Whitaker Scott R Speaker enclosure for a wall mounted speaker system
US20070039777A1 (en) * 2005-08-16 2007-02-22 Whitaker Scott R Speaker enclosure for a wall mounted speaker system
US20070158134A1 (en) * 2006-01-11 2007-07-12 Fryette Steven M Speaker cabinet acoustics control mechanism
US20070284183A1 (en) * 2006-06-08 2007-12-13 Whitaker Scott R Speaker enclosure for a ceiling or wall mounted speaker method and apparatus
US7530425B2 (en) * 2006-06-08 2009-05-12 Whitaker Scott R Speaker enclosure for a ceiling or wall mounted speaker method and apparatus
US20150156574A1 (en) * 2013-05-31 2015-06-04 David A. Wilson Speaker enclosure frame
US8985268B2 (en) * 2013-05-31 2015-03-24 David A. Wilson Speaker enclosure frame
US20140353075A1 (en) * 2013-05-31 2014-12-04 David A. Wilson Speaker enclosure frame
USD832238S1 (en) * 2017-06-21 2018-10-30 RB Distribution, Inc. Speaker cover
US11272275B1 (en) 2020-03-19 2022-03-08 Wisdom Audio Corp. Magnetic recoil fastener assembly for in-wall speaker installations
SE543949C2 (en) * 2020-10-02 2021-10-05 Ikea Supply Ag A panel-shaped electronic device with intersecting cable channels on the back-side
SE2051155A1 (en) * 2020-10-02 2021-10-05 Ikea Supply Ag A panel-shaped electronic device with intersecting cable channels on the back-side
WO2022071867A1 (en) * 2020-10-02 2022-04-07 Ikea Supply Ag A panel-shaped electronic device with intersecting cable channels on the back side
US11832408B2 (en) 2020-10-02 2023-11-28 Ikea Supply Ag Panel-shaped electronic device with intersecting cable channels on the back side
US11956589B1 (en) 2021-07-13 2024-04-09 Wisdom Audio Corp. PMD speaker mounting assembly and thermal control system for multiple drivers

Also Published As

Publication number Publication date
JPS6012891A (ja) 1985-01-23
GB2145606A (en) 1985-03-27
GB8416982D0 (en) 1984-08-08
GB2145606B (en) 1986-11-26
DE3424644A1 (de) 1985-01-24

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